05-24-2013, 04:55 PM | #1 |
Registered User
Join Date: Apr 2013
Location: covington, ga.
Posts: 8
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gas mileage
My 88 crewcab has a 454 with a 400 trans. Like all other big blocks, it gets bad gas mileage, 6-7 mpg. would I get better mileage with a 700r4, would it be worth the hassel of changing the transmissions ? what kind of mileage could I expect with a overdrive ?
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